Sound attenuation in a unexplored frequency region: Brillouin ultraviolet light scattering measurements in v-SiO2 (Articolo in rivista)

Type
Label
  • Sound attenuation in a unexplored frequency region: Brillouin ultraviolet light scattering measurements in v-SiO2 (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.71.172201 (literal)
Alternative label
  • Benassi, P; Caponi, Silvia ; Eramo, R ; Fontana, A; Giugni, A; Nardone, M ; Sampoli, M ; Viliani, G (2005)
    Sound attenuation in a unexplored frequency region: Brillouin ultraviolet light scattering measurements in v-SiO2
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Benassi, P; Caponi, Silvia ; Eramo, R ; Fontana, A; Giugni, A; Nardone, M ; Sampoli, M ; Viliani, G (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/pdf/PRB/v71/i17/e172201 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 71 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 172201 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. Univ Aquila, Dipartimento Fis, I-67100 Laquila, Italy 2. Univ Trent, Dipartimento Fis, I-38050 Povo, Italy 3. Univ Florence, Dipartimento Fis, I-50019 Florence, Italy 4. Univ Florence, LENS, I-50019 Florence, Italy 5. Univ Florence, Dipartimento Energet, I-50139 Florence, Italy 6. Univ Roma La Sapienza, INFM, CRS, SOFT, I-00185 Rome, Italy (literal)
Titolo
  • Sound attenuation in a unexplored frequency region: Brillouin ultraviolet light scattering measurements in v-SiO2 (literal)
Abstract
  • We report ultraviolet Brillouin light-scattering experimental data on V-SiO2 in an unexplored frequency region, performed with a newly available spectrometer, up to exchanged wave vector q values of 0.075 nm(-1), at different temperatures. The measured attenuation follows a q(2) law and is temperature dependent. Such temperature dependence is found to be in good agreement with that measured at lower q, suggesting that the broadening of the Brillouin peak is mainly due to a dynamic attenuation mechanism. The comparison of the present data with those obtained by inelastic x-ray and visible scattering indicates the existence of a crossover among different attenuation mechanisms, whose nature is briefly discussed. (literal)
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